TWM552414U - Nail shooting device dedicated for nail-shooting steel shell - Google Patents

Description

Steel shell nailing special nail shooter

The present invention relates to the field of nail fastening, and in particular to a special nail shooter for steel shell projectiles.

The nail shooter is a tool that uses the gunpowder gas generated by the launching projectile as a power to drive the nail into the building. The nail-cuttering technology is an advanced modern fastening technology. Compared with the traditional methods of pre-buried, hole-casting, bolting, welding, etc., it has many advantages: self-provided energy, free from wires and wind. The cumbersome pipe is convenient for on-site and high-altitude operation; the operation is fast and the construction period is short, which can greatly reduce the labor intensity of the construction workers; save funds and reduce construction costs.

At present, it is common to use a molded shell projecting nail as a driving force for firing a nail. For example, the prior art of the Chinese Patent Publication No. "CN205704031U" discloses a push type nailer on November 23, 2016, and the nailer includes a firing mechanism and a firing mechanism, the firing mechanism comprising a firing seat and a firing column disposed in the firing seat, the firing mechanism comprising a barrel, a barrel fixing sleeve, a barrel compression spring and a needle, the barrel sliding sleeve One end of the barrel fixing sleeve is fixedly sleeved on the firing seat, and the needle includes a head, a rod body and a seat body, and the head and the seat body are connected together by the rod body, and the head is located at the gun. Inside the tube, the seat body is located at the firing end of the firing column, and the barrel compression spring is sleeved on the rod Body, and the barrel compression spring is located between the barrel and the seat. The patent and the creation are both the same applicants. After further research and testing by the applicant, it is found that the plastic shell projectile has the following defects in the actual use process:

1. At present, there is no standard standard for directly filling the gunpowder with gunpowder. If the gunpowder is not evenly pressed during the production process or the gunpowder is not pressed tightly, during the shooting process, the friction between the needle and the gunpowder is insufficient, which will cause the dud produce. Moreover, the gunpowder is directly filled in the molded case. If the storage time is too long or the storage place is wet, the plastic will absorb moisture, and the gunpowder will be damp. In general, the firing rate of the molded shell projectile is between 80% and 95%, which is easy to produce duds.

2. When a dud bomb occurs, the needle is inserted into the molded shell to project the nail. Therefore, when the needle is thrown out, the rubbing of the gunpowder and the needle is easy to detonate and cause an accident.

3. Due to the special firing method of the plastic shell projecting nails, the power is inconsistent under the influence of the special tools of the plastic shell nailing projectile. After testing, the probability of the plastic shell projecting nails being 10%~20% cannot be penetrated into the 8mm thick. The steel plate (test base), that is, the molded shell shotgun has poor power stability.

4. Since there is no feasible standard for plastic shell nailing, there are many unsafe factors in the production of the manufacturer. The production equipment, production environment and production conditions are extremely high, which is easy to cause safety accidents.

5, the plastic shell projecting nails in the transportation process is easy to loosen the gunpowder, even falling, gunpowder directly spilled out, encountered friction or high temperature is likely to ignite and detonate, there is a greater potential safety hazard.

6. Due to the poor hardness of the molded shell projectile, it is susceptible to pressure changes in the event of a collision. Shape, which ignites and detonates.

7. The plastic shell projecting nail is easy to disassemble because it is a plastic shell. For the illegal elements, the gunpowder in the molded shell can be easily taken out for illegal activities.

Correspondingly, the nailer using the molded shell projectile as a power source also has the following drawbacks:

1. The nail tube is in the shape of a straight tube. After the explosion of the molded shell projectile, the molded shell will be tightly attached to the inner wall of the nail tube, and there is a situation in which the shell is difficult to be removed or the shell cannot be unloaded during the shelling process.

2. The needle is in the shape of an elongated one. During the use, it is subject to explosion shock and gunpowder corrosion. The needle tip of the needle is damaged or even broken after about 200 rounds of use, and the life of the needle is low.

3. Since there is a matching gap of 0.1 mm between the nail tube and the shot needle, it is easy to accumulate residue in the nail tube after the explosion of the plastic shell projectile, which affects the shelling performance and the installation of the nail.

4. During each firing of the nail shooter, the recoil force generated during the explosion will directly act on the firing spring of the firing column, and this recoil is far greater than the strength limit of the firing spring itself, and is used in 300~500 After that, the firing column compression spring will damage the failure.

In addition, due to the loud noise generated during the firing of the nail, it is usually necessary to provide a silencer chamber on the nail shooter. For example, the Chinese patent number "CN204711986U" discloses a nail remover silencer structure on July 2, 2015. The technical proposal comprises: a muffling tube which is disposed outside the nail mounting tube fixed at the front end of the nailer at the front and rear ends, wherein the nail mounting tube is provided with a communication nail mounting tube cavity near the front port and The first silencing hole of the inner cavity of the silencer tube and the second silencing hole on the peripheral wall of the counterbore. However, in actual use, the existing nailers usually have only one silencer with a volume of about 15 cm ³ , and the decibel value after silence is still above 90. The silencing effect is limited, and long-term use has a serious impact on human hearing.

The purpose of the present invention is to solve the above problems existing in the prior art, and to provide a special nail shooter for a steel shell projecting nail, which is specially designed for firing a steel shell projecting nail, and solves the low success rate of the existing plastic shell projecting nail. It is prone to safety accidents, collisions in the transportation process are prone to explosions, and the guns in the bombs are easily removed. At the same time, it is also possible to perform secondary expansion and release of the high-pressure gas generated during the explosion, thereby achieving the purpose of greatly reducing noise.

In order to achieve the above object, the technical solution adopted by the present invention is as follows: a special nail shooter for a steel shell projectile, comprising a nail tube, a needle, a needle holder, a sliding sleeve, a firing column and a return spring, the needle seat setting In the sliding sleeve, the firing column is disposed in the needle holder, the needle holder, the firing column and the sliding sleeve are connected by a positioning pin; one end of the needle is fixedly connected with the needle holder, and the other end is located in the nail tube a first muffler chamber is disposed outside the nail tube, and a second muffler chamber is disposed between the pin tube and the pin holder. The pin is located at the second muffler chamber. a second muffler chamber; the return spring is sleeved on an outer surface of the first muffler chamber and the second muffler chamber, and the return spring is located between the nozzle end of the pin tube and the sliding sleeve.

A connecting ring is disposed between the first silencing chamber and the second silencing chamber, and the connecting ring is fixedly sleeved on the nail tube, and the connecting ring is provided with a passage for connecting the first silencing chamber and the second silencing chamber Stomata.

The first muffler chamber is composed of a nail tube and a first muffler cover fixed on the nail tube to make.

One end of the first muffler cover is fixed to the nozzle end of the nail tube, and the other end is fixed on the connecting ring.

The second silencing chamber is composed of a nail tube, a needle holder and a second muffler cover. One end of the second muffler cover is fixedly connected with the nail tube, and the other end is slidably disposed between the sliding sleeve and the pin holder.

One end of the second muffler cover is fixed on the connecting ring, and the other end is slidably disposed between the sliding sleeve and the striking pin seat through the limiting boss.

The thickness of the first muffler cover is smaller than the thickness of the second muffler cover, and the outer diameter of the first muffler cover, the outer diameter of the second muffler cover, and the outer diameter of the connecting ring are the same.

The first muffler chamber has a volume of 15 cm ³ and the second muffler chamber has a volume of 35 cm ³ .

The number of the vent holes is 2 to 10.

The vent hole has a diameter of 1 to 4 mm.

The pin is fixedly connected to the pin holder through the limit pin.

The nailer further includes a firing column compression spring, a connecting sleeve and a limiting sleeve, the connecting sleeve is fixedly connected with the sliding sleeve, the firing column comprises a firing section and a connecting section, and the outer diameter of the firing section is larger than the connection An outer diameter of the segment, one end of the firing column compression spring is sleeved on the connecting section, the other end is located in the connecting sleeve, the limiting sleeve is fixedly disposed in the sliding sleeve, and the limiting sleeve passes through the firing section to the firing column Limit.

The limiting sleeve comprises a cylindrical sleeve body and a connecting portion formed by bending the end portion of the sleeve body vertically outwardly, the sleeve body is located in the sliding sleeve, and the connecting portion is fixed on the sliding sleeve and the connecting portion Between the sets.

The nailing channel of the nail tube includes a nailing exit section, a projectile placing section and a needle shooting section, and the nailing exiting section and the needleting section are respectively located at two ends of the projecting nail placing section, and the nailing bullet The inner diameter of the placement section is sequentially increased in the direction of the exit segment of the nail along the needle segment.

The length of the projecting portion of the projectile is 5 to 30 mm, and the inner diameter of one end of the projectile is 8.5 mm, and the inner diameter of the other end is 9 mm.

The fixing sleeve on the needle is provided with a residue cleaning ring.

The needle is opened with a ring groove, and the residue cleaning ring is installed in the ring groove.

The shot includes a rod body and a head, and the head is integrally formed on an end edge of the end of the rod, the head having a conical or trapezoidal shape.

The number of hits is at least one.

The advantages of using this creation are:

First, this creation is dedicated to firing steel shell projecting nails, which solves the problem that the existing plastic shell nailing bullets have low success rate, are prone to safety accidents, are prone to explosion during transportation, and are easily removed from the gun. In addition, the first muffler chamber can perform one expansion release of the high pressure gas generated by the steel shell projectile bomb explosion, and the second muffler chamber can perform secondary expansion release of the high pressure gas in the first muffler chamber. In the cooperation of the first muffler chamber and the second muffler chamber, the noise generated by the explosion can be reduced by about half, which effectively protects the user's hearing. In addition, the structure of the return spring sleeved on the outer surfaces of the first silencing chamber and the second silencing chamber is such that the spring movement stroke is greatly reduced relative to the total length of the spring, and the spring does not fatigue failure during long-term use, and the spring can be effectively extended. life.

Second, the connecting ring in the creation is designed with external threads, and the connecting ring is used to connect the first muffler chamber with the second muffler chamber, which is more convenient when disassembling the nail tube for maintenance.

Third, the secondary silencing structure in the creation can be realized by the connecting ring and the two muffler covers, which has the advantages of simple structure, low cost, and the like, and can greatly reduce noise, and is advantageous for large-scale manufacturing.

4. The first muffler cover in this creation has only a muffling effect, and the force is not strong; and the second muffler cover is connected with the nail tube and the rear portion of the nail shooter in addition to the muffling effect, and is subjected to a large force during use. Therefore, the structure in which the thickness of the first muffler cover is smaller than the thickness of the second muffler cover is advantageous in reducing cost and weight. The outer diameter of the first muffler cover, the outer diameter of the second muffler cover and the outer diameter of the connecting ring are the same, so that the outer surfaces are smooth after the three are connected together, and the return spring movement is smoother during use.

5. The volume of the first muffler chamber in this creation is 15cm ³ , and the volume of the second muffler chamber is 35cm ³ . Under the large modification without the nail remover, the volume of the muffler chamber can reach 50cm ³ (two The sum of the volume of the muffler chamber, which is equivalent to 3 times the volume of the existing muffler chamber, effectively reduces the use noise.

Sixth, the creation of 2~10 vent holes with a diameter of 1~4mm on the connecting ring can quickly expand the high-pressure gas in the first silencing chamber to the second muffler chamber, achieving the purpose of quickly and effectively reducing noise.

7. The creation limits the firing column by the limit sleeve set in the sliding sleeve, so that the recoil force generated by the steel shell projectile bomb explosion is transferred from the needle and the needle seat to the limit sleeve in turn, reducing the firing. The column compression spring is affected by the recoil force, which is beneficial to improve the service life of the firing column compression spring.

8. The limit sleeve in the creation has the advantages of good limit effect and convenient disassembly and assembly through the structure of the connecting portion and the sliding sleeve.

Nine, the creation divides the nailing channel of the nail tube into the nailing exit section, the projecting nail placement section and the needle shooting section, and sets the projecting nail placement section as a tapered channel structure, which can explode the steel shell projecting nail. Provide expansion space to reduce the force on the inner wall of the nail tube when the steel shell projectile bomb explodes, reduce the friction between the steel shell projectile and the inner wall of the nail tube, and finally achieve smooth unloading and reduce the inner wall of the nail tube. The purpose of wear. Compared with the prior art, the unloading of the shell is smoother and the service life of the nail tube is prolonged.

10. This creation sets the length of the nailing section to 5~30mm, and sets the inner diameters of the two ends of the projecting nail to 8.5mm and 9mm respectively. It is especially suitable for the firing of steel shell projectiles, so that the steel shell It is easier to shoot the shell.

XI. This creation can fix the gunpowder residue on the inner wall of the nail tube by using the tension of the residue cleaning ring to fix the gunpowder residue on the inner wall of the nail tube by fixing the residue cleaning ring set on the needle. Completely take out the nail tube, avoid the accumulation of gunpowder residue, and finally achieve the purpose of smooth shelling and loading.

12. This creation adopts a cone-shaped or trapezoidal-shaped head, and the structure in which the head is placed on the edge of the end face of the rod body can be squeezed from the edge of the bottom of the steel shell projecting nail, and detonate quickly and accurately. The steel shell shoots the nails, thereby achieving the purpose of quickly hitting the nails. Further, since the head is not in contact with the gunpowder, the head is not easily corroded and is advantageous for increasing the service life of the head. In addition, since the hitting head is integrally formed with the rod body, it has the advantages of simple preparation process, low cost, good rigidity of the overall structure of the needle, and long service life.

Thirteen, this creation sets at least one hit, which can reduce the chance of duds, and thus improve the success rate of firing.

1‧‧‧nail tube

2‧‧‧needle

2a‧‧‧ headshot

3‧‧‧ needle seat

4‧‧‧Sleeve

5‧‧‧Burning column

6‧‧‧Return spring

7‧‧‧Locating pin

8‧‧‧The first silencer room

9‧‧‧second silencer room

10‧‧‧Connecting ring

11‧‧‧Ventinel

12‧‧‧First silencer cover

13‧‧‧second silencer cover

14‧‧‧ Limit pin

15‧‧‧fire column compression spring

16‧‧‧Connecting sleeve

17‧‧‧ Limit set

18‧‧‧ Shot nail exit section

19‧‧‧ Shotgun placement section

20‧‧‧needle segment

21‧‧‧Residue cleaning ring

22‧‧‧Steel shell

23‧‧‧Installation section

24‧‧‧ nail connection section

25‧‧‧Cone section

The first picture is a schematic diagram of the structure of the creation.

The second picture is a schematic diagram of the structure of the nail tube in the creation.

The third figure is a three-dimensional structure diagram of the nail tube in the creation.

The fourth picture is a schematic diagram of the structure of the shot in the creation.

The fifth picture is a schematic diagram of the structure of the residue cleaning ring in the creation.

The sixth figure is a structural schematic diagram of the steel shell projectile used in the creation.

The seventh figure is another structural schematic diagram of the steel shell projectile used in this creation.

Example 1

A special nail shooter for a steel shell projectile, comprising a nail tube 1, a needle 2, a needle holder 3, a sliding sleeve 4, a firing column 5 and a return spring 6, the needle holder 3 being disposed in the sliding sleeve 4, The firing post 5 is disposed in the firing pin holder 3, and the firing pin holder 3, the firing post 5 and the sliding sleeve 4 are connected by a positioning pin 7; one end of the firing pin 2 passes through the limiting pin 14 and the pinion seat 3 a fixed connection, the other end is located in the nail tube 1; the nail tube 1 is provided with a first muffler chamber 8 communicating with the nail passage, and the first muffler chamber is disposed between the nail tube 1 and the pin holder 3 a second anechoic chamber 9 communicating with each other, the strobe 2 being located in the second muffler chamber 9; the return spring 6 being sleeved on the outer surfaces of the first muffler chamber 8 and the second muffler chamber 9, and the return spring 6 Located between the nozzle end of the nail tube 1 and the sliding sleeve 4.

In this embodiment, the first muffler chamber 8 and the second muffler chamber 9 are disposed between The connecting ring 10 is fixedly sleeved on the nail tube 1. The connecting ring 10 is provided with a venting opening 11 for communicating the first silencing chamber 8 and the second silencing chamber 9. Wherein, one end of the nail tube 1 is sleeved with a convex ring, the convex ring is located at the nozzle end of the nail tube 1, and the connecting ring 10 is fixed at the other end of the nail tube 1, and both ends of the connecting ring 10 Steps each having an outer diameter smaller than the outer diameter of the connecting ring 10 are respectively provided, and the convex ring is also provided with a step.

Further, the number of the vent holes 11 is 2 to 10, and the diameter of each of the vent holes 11 is 1 to 4 mm. The specific number and diameter of the vent holes 11 are set according to actual conditions.

In this embodiment, the first silencing chamber 8 is composed of a nail tube 1 and a first muffler cover 12 fixedly disposed on the nail tube 1. The second muffler chamber 9 is composed of a nail tube 1, a needle holder 3 and The second muffler cover 13 is constructed. Wherein, one end of the first muffler cover 12 is screwed on the convex ring of the nozzle end of the nail tube 1, and the other end is screwed on the step of one end of the connecting ring 10. One end of the second muffler cover 13 is screwed on the step of the other end of the connecting ring 10, and the other end of the second muffler cover 13 is slidably disposed between the sliding sleeve 4 and the pinion seat 3 through the limiting boss. Further, the end surface of the first muffler cover 12 and the end surface of the second muffler cover 13 are in close contact with the connecting ring 10. In use, the second muffler cover 13 is slidable between the sliding sleeve 4 and the pinion seat 3, and the limiting boss is for preventing the second muffler cover 13 from falling off between the sliding sleeve 4 and the pinion seat 3.

In this embodiment, the thickness of the first muffler cover 12 is smaller than the thickness of the second muffler cover 13, and the outer diameter of the first muffler cover 12, the outer diameter of the second muffler cover 13 and the outer diameter of the connecting ring 10 are the same. , that is, the first muffler cover 12, the second muffler cover 13 and the connecting ring The outer surface of 10 is smoothly joined.

In this embodiment, the volume of the first silencing chamber 8 is 15 cm ³ , and the volume of the second silencing chamber 9 is 35 cm ³ .

In this embodiment, after the steel shell projectile is exploded, the generated high-pressure gas is transmitted to the first silencing chamber 8 through the sound-absorbing hole, and the first gas expansion is released. Under the continuous action of the high-pressure gas, the high-pressure gas passes through the nail tube. The vent hole 11 on the 1 is swelled and released to the second muffler chamber 9, and the volume of the high-pressure gas is rapidly expanded to achieve the purpose of silencing. According to the actual test, when the tool is used on concrete, the noise decibel value is only 50~60 decibels, which is nearly double the existing noise reduction effect. The long-term use has little impact on human hearing.

In this embodiment, the nailer further includes a firing column compression spring 15, a connecting sleeve 16 and a limiting sleeve 17, the connecting sleeve 16 is fixedly connected with the sliding sleeve 4, and the firing column 5 includes a firing section and a connection. The outer diameter of the firing section is larger than the outer diameter of the connecting section, and one end of the firing column compression spring 15 is sleeved on the connecting section, and the other end is located in the connecting sleeve 16, and the limiting sleeve 17 is fixedly disposed on the sliding section. In the sleeve 4, the limit sleeve 17 limits the firing post 5 through the firing section. Wherein, the limiting sleeve 17 is disposed after the needle holder 3 just contacts the limiting sleeve 17, and the firing pin is released from the insurance for firing. At this time, since the needle holder 3 has contacted the limiting sleeve 17, the recoil force generated by the explosion is generated. It will directly act on the needle 2, and then be transmitted to the needle holder 3, and then continue to be transmitted to the limit sleeve 17, effectively avoiding the recoil force received by the firing column compression spring 15, so that the life of the firing column compression spring 15 is further Long, after actual testing, the life of the firing column compression spring 15 can reach about 5,000.

Further, the limiting sleeve 17 comprises a cylindrical sleeve and is perpendicular to the end of the sleeve A connecting portion formed by bending outward, the sleeve is located in the sliding sleeve 4, and the connecting portion is fixed between the sliding sleeve 4 and the connecting sleeve 16.

In this embodiment, the nailer further includes a firing pin, a firing pin compression spring, a firing piece, a bushing, and the like. Since the firing pin, the firing pin compression spring, the firing piece, the bushing, and the like are conventional techniques, It will not be described here.

The usage principle of this embodiment is as follows: the end of the nail tube 1 is set as the front end, and the end of the connecting sleeve 16 is the rear end. The steel shell projectile and the nail are sequentially loaded into the nail tube 1, and the position to be fastened is aligned, so that the protection seat on the nail tube 1 is closely attached to the base body, and the nail tube 1 is pressed, and the nail tube 1 compresses the return spring. 6. At the same time, the nailing will drive the needle 2 to move backward, the needle 2 drives the needle holder 3 to move backward, and then the firing pin 5 drives the firing column 5 to move to the rear end, and the firing column 5 compresses the firing column compression spring 15 during the backward movement. When the firing pin moves to the position of the firing piece, under the action of the firing piece, the firing pin is pressed into the blind hole of the firing column 5, and instantly exits the stop on the firing seat, and the firing column 5 is in the firing column compression spring Under the force of 15, the impact pin seat 3 is instantaneously hit, the pin block 3 drives the pin 2 to strike and detonate the steel shell projecting nail, and the nail is hit into the base to complete a firing process.

Example 2

A special nail shooter for a steel shell projectile, comprising a nail tube 1, a needle 2, a needle holder 3, a sliding sleeve 4, a firing column 5 and a return spring 6, the needle holder 3 being disposed in the sliding sleeve 4, The firing post 5 is disposed in the needle holder 3, and the firing pin holder 3, the firing post 5 and the sliding sleeve 4 are connected by a positioning pin 7; one end of the pin 2 is fixedly connected with the pin holder 3, and the other end is The nail tube 1 is disposed outside the nail tube 1 and has a first muffler chamber 8 communicating with the nail channel. The pin tube 1 and the pin holder 3 are disposed with the first muffler chamber 8 . a second muffler chamber 9 in contact with the second muffler chamber 9; the return spring 6 is sleeved on the outer surfaces of the first muffler chamber 8 and the second muffler chamber 9, and the return spring 6 is located The nozzle end of the nail tube 1 is between the sleeve 4 and the sliding sleeve 4.

In this embodiment, the nailing channel of the nail tube 1 includes a nailing exit section 18, a projectile placing section 19 and a needle shooting section 20, and the nailing exit section 18 and the needle shooting section 20 are respectively located in the projectile The two ends of the segment 19 are placed, and the inner diameter of the projectile placement section 19 is sequentially increased in the direction of the nail exit section 18 along the needle segment 20. The length of the projectile placement section 19 is 5 to 30 mm, preferably 15 mm. The inner end of the projectile placing section 19 has an inner diameter of 8.5 mm and an inner diameter of the other end of 9 mm. Further, the inner diameter of the nail exiting section 18 is the same as the inner diameter of the large end of the projectile placing section 19, both of which are 9 mm; the inner diameter of the firing section 20 and the small end of the projectile placing section 19 The inner diameter is the same, both are 8.5mm.

In this embodiment, the projecting nail placement section 19 is located approximately in the middle section of the nailing channel, and the steel shell projecting nail is inserted into the nailing tube 1 just in the nailing bomb placement section 19. The needle segment 20 refers to a region corresponding to the needle 2 in the nail channel, that is, one end of the needle 2 on which the head 2a is provided is located in the needle segment 20 of the nail tube 1.

In this embodiment, the steel shell projecting nail is loaded into the nail tube 1 when in use, and after being installed in position, the steel shell projecting nail is just in the nailing nail placing section 19. Then, under the impact of the needle 2, the steel shell projecting bomb explodes, and the steel shell projecting nail and the nail are shot together to send the nail tube 1, and the shell expands in the projectile placement section 19 and sticks to the nail tube. 1, because the projectile placement section 19 has a taper, which provides space for the expansion of the steel shell projectile, so that the shell can be easily ejected under the push of the needle 2.

Example 3

A special nail shooter for a steel shell projectile, comprising a nail tube 1, a needle 2, a needle holder 3, a sliding sleeve 4, a firing column 5 and a return spring 6, the needle holder 3 being disposed in the sliding sleeve 4, The firing post 5 is disposed in the needle holder 3, and the firing pin holder 3, the firing post 5 and the sliding sleeve 4 are connected by a positioning pin 7; one end of the pin 2 is fixedly connected with the pin holder 3, and the other end is Located in the nail tube 1; the nail tube 1 is provided with a first silencing chamber 8 communicating with the nail passage, and a second passage communicating with the first silencing chamber 8 is disposed between the nail tube 1 and the needle holder 3 a muffler chamber 9, the pin 2 is located in the second muffler chamber 9; the return spring 6 is sleeved on the outer surfaces of the first muffler chamber 8 and the second muffler chamber 9, and the return spring 6 is located at the nail tube 1 Between the nozzle end and the sliding sleeve 4.

In this embodiment, a ring groove is formed in one end of the shot 2 adjacent to the head 2a, and a residue cleaning ring 21 is installed in the ring groove. The residue cleaning ring 21 is made of plastic and has a certain tension. Therefore, when the firing operation is completed, the tension of the residue cleaning ring 21 can be used to clean the gunpowder residue on the inner wall of the nail tube 1, and the gunpowder residue is completely taken out of the nail tube 1 to avoid the accumulation of the gunpowder residue. Achieve the purpose of smooth loading. After the actual test, after the nailer of the prior art fires about 100 times of the plastic shell projecting nail, the residue in the nailer must be cleaned, and the interval of the creation cleaning can be cleaned once every 1000 shots.

Example 4

A special nail shooter for a steel shell projectile, comprising a nail tube 1, a needle 2, a needle holder 3, a sliding sleeve 4, a firing column 5 and a return spring 6, the needle holder 3 being disposed in the sliding sleeve 4, The firing column 5 is disposed in the needle holder 3, the needle holder 3, the firing column 5 and the sliding The sleeve 4 is connected by a positioning pin 7; one end of the pin 2 is fixedly connected with the pin holder 3, and the other end is located inside the nail tube 1; the nail tube 1 is provided with a first muffler chamber 8 communicating with the nail channel a second muffler chamber 9 communicating with the first muffler chamber 8 is disposed between the nail tube 1 and the pin holder 3, the pin 2 is located in the second muffler chamber 9; the return spring 6 is sleeved in The outer surfaces of the first muffler chamber 8 and the second muffler chamber 9 are disposed, and the return spring 6 is located between the nozzle end of the staple tube 1 and the sliding sleeve 4.

In the present embodiment, the striking needle 2 includes a rod body and a striking head 2a integrally formed on an end edge of the end portion of the rod body, and the striking head 2a has a conical shape or a trapezoidal shape. Further, the number of the hitting heads 2a is at least one, and the length thereof is 0.5 to 2.5 mm.

In the embodiment, in use, the head 2a on the needle 2 instantaneously hits the edge of the bottom of the steel shell projecting nail, and the projectile is detonated to fire the nail.

In this embodiment, a conical or trapezoidal type of striking head 2a is used. When the steel shell is fired, the impact of the metal shell is caused by the striking needle 2, and the steel shell projectile is detonated, and the firing success rate is higher.

Example 5

On the basis of any of the embodiments 1-4, the embodiment further provides a steel shell projectile for the nail shooter, and the structure is: including a steel shell 22 and a spring seat, the spring seat The nail connecting portion 24 and the mounting portion 23 are included. The outer diameter of the nail connecting portion 24 is larger than the outer diameter of the mounting portion 23, and the steel shell 22 is fixed in the spring seat.

In this embodiment, the outer diameter of the nail connecting section 24 is 9 mm, the length of the nail connecting section 24 is 10 mm, and the outer diameter of the mounting section 23 is 8.5 mm.

In this embodiment, the spring seat further includes a tapered section 25 located between the nail connecting section 24 and the mounting section 23. Wherein, the length of the tapered section 25 is 0.1-11 mm, wherein the longer the length of the tapered section 25 is, the smaller the gap formed between the inner wall of the nail tube 1 is, so that the power generated by the explosion is greater and more stable. .

In this embodiment, a mounting slot is defined in the mounting section 23, and the steel shell 22 is in an interference fit with the mounting slot.

In the present embodiment, in actual use, the nail is usually injection molded at the end of the nail connecting section 24, so that the nail and the steel shell projectile can be placed into the nail tube 1 at one time.

This embodiment is used in conjunction with a dedicated nailer and has the following advantages:

1. Since the firing principle of the steel shell projecting nail is triggered by the impact of the needle 2 on the metal shell, the success rate of the firing can be improved to 99.5% or more, which is beneficial to greatly reduce the generation of the dud. Further, since the steel shell projectile is made of a metal material and has better impact resistance, no explosion occurs when the dummy is exited.

2. Under the conditions of the loading of the existing plastic shell nail gun, the use of this creation can drive more than 99.5% of the nail into the 8mm thick steel plate (test base), which greatly improves the stability of the projectile bomb explosion. Sex.

3. At present, the steel shell projectile projectile implements the standard of GB19914-2005 nail projectile. It has been used for nearly 40 years, and the production technology and safe transportation technology are mature. The national standard and industry standard of the corresponding system have been formed, and the scale is utilized. Manufacturing.

4. The steel shell projecting nail is fixed in the spring seat, the steel shell projecting nail will not fall off, and the storage and transportation meet the requirements of national standards. At the same time, since the compressive strength of the steel shell projectile is much higher than that of the existing plastic shell projectile, even if collision or friction is encountered during transportation, It is easy to deform and explode, and it is safer.

5. The strength of the steel shell projecting nail shell is higher. Correspondingly, the difficulty of disassembling the gunpowder is higher, and the forced dismantling is easy to cause an explosion, so it is not easy to be used by illegal elements.

1‧‧‧nail tube

2‧‧‧needle

3‧‧‧ needle seat

4‧‧‧Sleeve

5‧‧‧Burning column

6‧‧‧Return spring

7‧‧‧Locating pin

8‧‧‧The first silencer room

9‧‧‧second silencer room

10‧‧‧Connecting ring

11‧‧‧Ventinel

12‧‧‧First silencer cover

13‧‧‧second silencer cover

14‧‧‧ Limit pin

15‧‧‧fire column compression spring

16‧‧‧Connecting sleeve

17‧‧‧ Limit set

18‧‧‧ Shot nail exit section

19‧‧‧ Shotgun placement section

20‧‧‧needle segment

21‧‧‧Residue cleaning ring

Claims (13)

A special nail shooter for a steel shell projectile, comprising a nail tube, a needle, a needle holder, a sliding sleeve, a firing column and a return spring, wherein the needle holder is disposed in the sliding sleeve, and the firing column is arranged in the needle In the seat, the pin holder, the firing post and the sliding sleeve are connected by a positioning pin; one end of the pin is fixedly connected with the pin holder, and the other end is located in the nail tube; and the nail tube is provided with a nail channel outside a first muffler chamber, a second muffler chamber communicating with the first muffler chamber is disposed between the pin tube and the pin holder, the pin is located in the second muffler chamber; and the return spring is sleeved at the first The outer surface of the muffler chamber and the second muffler chamber, and the return spring is located between the nozzle end of the staple tube and the sliding sleeve. The special nail shooter for steel shell projectiles according to claim 1, wherein a connecting ring is disposed between the first silencing chamber and the second silencing chamber, and the connecting ring is fixedly sleeved on the nail tube. The connecting ring is provided with a vent hole for connecting the first muffler chamber and the second muffler chamber. The special nail shooter for steel shell projectiles according to claim 2, wherein the first silencing chamber is composed of a nail tube and a first muffler cover fixed on the nail tube. The special nail shooter for steel shell projectiles according to claim 3, wherein one end of the first muffler cover is fixed at the nozzle end of the nail tube, and the other end is fixed on the connecting ring. The steel shell projecting nail special nailer according to claim 1, wherein the second silencing chamber is composed of a nail tube, a needle holder and a second muffler, and one end of the second muffler is The nail tube is fixedly connected, and the other end is slidably disposed between the sliding sleeve and the needle holder. The steel shell projecting nail special nailer according to claim 5, wherein a connecting ring is disposed between the first silencing chamber and the second silencing chamber, and one end of the second muffler is fixedly connected On the ring, the other end has a limiting boss slidingly disposed between the sliding sleeve and the needle holder. The special nail shooter for steel shell projectiles according to claim 6, wherein the thickness of the first muffler cover is smaller than the thickness of the second muffler cover, and the outer diameter of the first muffler cover and the second muffler cover The outer diameter and the outer diameter of the connecting ring are the same. The steel shell projectile special nailer according to claim 1, wherein the first muffler chamber has a volume of 15 cm ³ and the second muffler chamber has a volume of 35 cm ³ . The special nail shooter for steel shell projectiles according to claim 1, wherein the nail shooter further comprises a firing column compression spring, a connecting sleeve and a limiting sleeve, wherein the connecting sleeve is fixedly connected with the sliding sleeve. The firing post includes a firing section having an outer diameter greater than an outer diameter of the connecting section, and an outer end of the firing column compression spring disposed on the connecting section and the other end being located in the connecting sleeve. The limiting sleeve is fixedly disposed in the sliding sleeve, and the limiting sleeve limits the firing post through the firing section. The steel shell projecting nail special nailer according to claim 9, wherein the limiting sleeve comprises a cylindrical sleeve body and a connecting portion formed by bending the end portion of the sleeve body vertically outward, The sleeve is located in the sliding sleeve, and the connecting portion is fixed between the sliding sleeve and the connecting sleeve. The special nail shooter for a steel shell projectile according to the first aspect of the invention, wherein the nail passage of the nail tube comprises a nail exiting section, a projectile placing section and a needle shooting section, the nailing exit a segment and a pin segment are respectively located at two ends of the projecting portion of the projectile, the projectile The inner diameter of the placement section is sequentially increased in the direction of the exit segment of the nail along the needle segment. The steel shell projecting nail special nailing device according to claim 1, wherein the fixing sleeve on the needle is provided with a residue cleaning ring. The steel shell projecting nail special nailer according to claim 1, wherein the shot comprises a rod body and a head, and the head is integrally formed on an end edge of the end of the rod body, The head is in the shape of a cone or a ladder.